Development

It is a variation on Japanese mahjong. In the final showdown between East and West, Clear Mahjong (with no exchange of points) is proposed by Ten. Harada accepts these rules with the condition that points are used alongside Clear Mahjong.

Preliminaries

Equipment

Bams

Cracks

Dots

Winds

Dragons

Flowers

Seasons

Jokers

Red tiles

Tiles used

136 tiles

Scoring sticks

2 dice

Terminology

chi (chow)

A sequence of three.

pon (pung)

Three of a kind.

kan (kong)

Four of a kind.

dora

A tile which is worth one additional han.

ron

Win on a discarded tile.

han

Unit of scoring

han-chan

a two-round game

fu

Unit of scoring (minipoints)

tsumo

Win on a self-drawn tile.

furiten

Miss win.

tenpai

Waiting on a tile to win.

chombo

A severe penalty.

yaku

Hand pattern necessary to go out on.

Seating

The two players from each team will sit next to each other.

Dealing

Tiles are then dealt accordingly to each player. The wall will be 17 tiles in length. The last 14 tiles are set aside as the dead wall.

Dora Indicator

The third tile from the end of the dead wall is turn face up. This tile indicates which tile is dora.

Gameplay

Clear Mahjong is a race to complete each of five two han yaku at least once.

Ikkitsukan (3 chows of 1-2-3, 4-5-6 and 7-8-9)

Sanshoku Doujun (3 chows of 3 different suits of the same numerical sequence)

Chanta (All four sets and the pair contain a terminal or honor)

Chiitoitsu (Seven Pairs)

San'ankou (3 concealed pungs)

In addition, each player starts the han-chan with 25,000 points. These points carry over to the next han-chan if necessary (i.e. if a player finishes a han-chan with 500 points, he will start the next han-chan with 500 points).

Post-Game

The first team to complete each yaku at least once wins the game. However, if any player drops below zero points, then his side loses instantly. If a team meets both of these conditions in the same hand, then the game is drawn.